1 #ifndef _ASM_X86_PAGE_64_DEFS_H
2 #define _ASM_X86_PAGE_64_DEFS_H
3
4 #define THREAD_ORDER 1
5 #define THREAD_SIZE (PAGE_SIZE << THREAD_ORDER)
6 #define CURRENT_MASK (~(THREAD_SIZE - 1))
7
8 #define EXCEPTION_STACK_ORDER 0
9 #define EXCEPTION_STKSZ (PAGE_SIZE << EXCEPTION_STACK_ORDER)
10
11 #define DEBUG_STACK_ORDER (EXCEPTION_STACK_ORDER + 1)
12 #define DEBUG_STKSZ (PAGE_SIZE << DEBUG_STACK_ORDER)
13
14 #define IRQ_STACK_ORDER 2
15 #define IRQ_STACK_SIZE (PAGE_SIZE << IRQ_STACK_ORDER)
16
17 #define STACKFAULT_STACK 1
18 #define DOUBLEFAULT_STACK 2
19 #define NMI_STACK 3
20 #define DEBUG_STACK 4
21 #define MCE_STACK 5
22 #define N_EXCEPTION_STACKS 5 /* hw limit: 7 */
23
24 #define PUD_PAGE_SIZE (_AC(1, UL) << PUD_SHIFT)
25 #define PUD_PAGE_MASK (~(PUD_PAGE_SIZE-1))
26
27 /*
28 * Set __PAGE_OFFSET to the most negative possible address +
29 * PGDIR_SIZE*16 (pgd slot 272). The gap is to allow a space for a
30 * hypervisor to fit. Choosing 16 slots here is arbitrary, but it's
31 * what Xen requires.
32 */
33 #define __PAGE_OFFSET _AC(0xffff880000000000, UL)
34
35 #define __PHYSICAL_START ((CONFIG_PHYSICAL_START + \
36 (CONFIG_PHYSICAL_ALIGN - 1)) & \
37 ~(CONFIG_PHYSICAL_ALIGN - 1))
38
39 #define __START_KERNEL (__START_KERNEL_map + __PHYSICAL_START)
40 #define __START_KERNEL_map _AC(0xffffffff80000000, UL)
41
42 /* See Documentation/x86/x86_64/mm.txt for a description of the memory map. */
43 #define __PHYSICAL_MASK_SHIFT 46
44 #define __VIRTUAL_MASK_SHIFT 47
45
46 /*
47 * Kernel image size is limited to 512 MB (see level2_kernel_pgt in
48 * arch/x86/kernel/head_64.S), and it is mapped here:
49 */
50 #define KERNEL_IMAGE_SIZE (512 * 1024 * 1024)
51 #define KERNEL_IMAGE_START _AC(0xffffffff80000000, UL)
52
53 #ifndef __ASSEMBLY__
54 void clear_page(void *page);
55 void copy_page(void *to, void *from);
56
57 /* duplicated to the one in bootmem.h */
58 extern unsigned long max_pfn;
59 extern unsigned long phys_base;
60
61 extern unsigned long __phys_addr(unsigned long);
62 #define __phys_reloc_hide(x) (x)
63
64 #define vmemmap ((struct page *)VMEMMAP_START)
65
66 extern void init_extra_mapping_uc(unsigned long phys, unsigned long size);
67 extern void init_extra_mapping_wb(unsigned long phys, unsigned long size);
68
69 #endif /* !__ASSEMBLY__ */
70
71 #ifdef CONFIG_FLATMEM
72 #define pfn_valid(pfn) ((pfn) < max_pfn)
73 #endif
74
75 #endif /* _ASM_X86_PAGE_64_DEFS_H */
76
|
This page was automatically generated by the
LXR engine.
|